I don´t know much about the optimal quality for film/slides, but I´ll give you my comments in case they are of any help.
Contrast is a bit too much on both, I think. The whites on #1 might be a bit too intense, as well. I see also some compression issues on #1, and both pictures seem to have some red colour cast into them.

Hope it helps.

Cheers
Lanas.-

"Faithless is he that says farewell when the road darkens." J.R.R. Tolkien